1. Photosynthesis Overview Chp 4.2
Chapter 4: Cells and Energy
Section 2: Photosynthesis Overview
Photosynthesis Overview Chp 4.2

2. Do Now! Think of the words “photo-” and “-synthesis”
Chapter 4: Cells and Energy
Section 2: Photosynthesis Overview
Do Now!
Think of the words “photo-” and “-synthesis”
Write down what you think the meanings of these two words are.
Write down 2 other words that use these words.

3. Agenda Photosynthesis Overview (presentation) Photosynthesis Jeopardy
Chapter 4: Cells and Energy
Section 2: Photosynthesis Overview
Agenda
Photosynthesis Overview (presentation)
Photosynthesis Jeopardy
Chapter 4 Enrichments
ETC Modeling Activity

4. What might plants use to make their food?
Chapter 4: Cells and Energy
Section 2: Photosynthesis Overview
Plants are Producers
…but what do plants produce?
Plants produce their own food!
What might plants use to make their food?

5. Photo-synthesis “Photo-” = “light” “-synthesis” = “to put together”
Chapter 4: Cells
Section 2: Photosynthesis Overview
Photo-synthesis
“Photo-” = “light”
“-synthesis” = “to put together”
A process that captures energy from sunlight to make sugars that store chemical energy

6. Chapter 4: Cells
Section 2: Photosynthesis Overview
FOOD!

7. Chapter 4: Cells
Section 2: Photosynthesis Overview

8. Chloroplasts are the site of photosynthesis
Chapter 4: Cells
Section 2: Photosynthesis Overview
Chloro-plasts
Chloroplasts are the site of photosynthesis
Double-membrane bound organelles
They have a highly specialized structure
Contain chlorophyll

9. Chloroplasts in Elodea (YouTube link)
Chapter 4: Cells
Section 2: Photosynthesis Overview
Chloroplasts in Elodea (YouTube link)

10. Where is the chlorophyll?
Chapter 4: Cells
Section 2: Photosynthesis Overview
Where is the chlorophyll?
Inner Membrane
Outer Membrane
Granum (Grana)
Thylakoid
Stroma (aqueous space)

11. Chapter 4: Cells
Section 2: Photosynthesis Overview

12. Is the chlorophyll in here?
Chapter 4: Cells
Section 2: Photosynthesis Overview
Chloro-plasts
A granum is a stack of thylakoids
Connected by lamellae
Is the chlorophyll in here?

13. Can you name a pigment found in the chloroplast?
Chapter 4: Cells
Section 2: Photosynthesis Overview
Chloro-plasts
Thylakoids are coin or disc-shaped
Interior is separate from exterior
Contains pigments and enzymes in their membrane
Site of light-dependent reactions of photosynthesis
Can you name a pigment found in the chloroplast?

14. Chapter 4: Cells Chlorophyll is here!
Section 2: Photosynthesis Overview
Chlorophyll is here!

15. Photosynthesis (YouTube link)
Chapter 4: Cells
Section 2: Photosynthesis Overview
Photosynthesis (YouTube link)

16. Light-dependent reactions (Electron Transport Chain)
Chapter 4: Cells
Section 2: Photosynthesis Overview
Light-dependent reactions (Electron Transport Chain)
Using chlorophyll and other pigments, captures energy from sunlight
Captured light energy is transferred along the thylakoid membrane
Breaks apart H2O
Generates ATP and NADPH

17. Light Dependent Reactions (YouTube link)
Chapter 4: Cells
Section 2: Photosynthesis Overview
Light Dependent Reactions (YouTube link)

18. Uses ATP and NADPH from light-dependent reactions
Chapter 4: Cells
Section 2: Photosynthesis Overview
Light-independent reactions
(Calvin Cycle)
Uses ATP and NADPH from light-dependent reactions
Breaks apart CO2
Builds sugar(glucose) to store energy
Occurs in the stroma

19. Light Independant Reactions (YouTube link)
Chapter 4: Cells
Section 2: Photosynthesis Overview
Light Independant Reactions (YouTube link)

20. Virtual Photosynthesis Lab (link)
Chapter 4: Cells
Section 2: Photosynthesis Overview
Virtual Photosynthesis Lab (link)